10 20 40 60 cm

mittakaava < 40 cm

         
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Gösta Sundman: Suomen Kalat (Kansalliskirjasto, The National Library of Finland), Petri Savola (Uudenmaan ympäristökeskus), Lauri Urho

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Dace

Leuciscus leuciscus

  • Family: Carps and minnows – Cyprinidae
  • Similar species: bleak, chub, ide, roach
  • Size: 15-25 cm.
  • Appearance: The dace is a slim-bodied fish most easily confused with the bleak, but with only 7-9 rays in the short anal fin, compared with 17-22 in the bleak. The upper jaw protrudes slightly, while the mouth is not upturned as in the bleak. May also be confused with small roach, ide or chub, although these species are slightly deeper bodied. The anal fin of the chub is convex, whereas that of the dace is concave. Scales smaller compared with roach, usually 47-53 along the lateral line (roach 42-45). The ide’s scales are even smaller, with 53-61 along the lateral line.
  • Colouring: The dace is a typical cyprinid, having silver sides, a dark back and pale belly. The eyes are yellow and the underside fins pale yellow-orange.
  • Reproduction: Ascends streams in early May to spawn on a sand or gravel bottom.
  • Food: Small benthic invertebrates, surface insects and plants.
  • Distribution and habitat: Common along all of Finland’s coasts. Inland, dace tend to be found principally in the north and east of the country. Occurs in the river Oulujoki catchment and in all rivers flowing into the northern Gulf of Bothnia. Does not occur in the very north of Lapland. Also found in SE Finland in the Vuoksi system and around Puumala. There are also populations in southern parts of the lake Päijänne system and in the river Kymijoki. Prefers clear, fast-flowing streams. Some remain in their spawning streams for the summer, while others return to the sea or lake. All dace over-winter in deep water in the sea or lakes.
Other species from the same genus
Other species from the same family

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